Do these headlights mount at the factory attachment points?

Mounting method isn't confirmed in the product specs. Test-fit these in your housings before finalizing your install plan—you may need factory brackets, adhesive, or custom fasteners depending on your setup.

Will I need to wire these into my existing harness or is there a plug-and-play option?

A wiring harness is included, but how it connects to your car's electrical system depends on your chassis. Have your service manual handy or consult a forum thread for your specific model—many owners document the splice points.

What's the return window if these don't fit or don't work?

Check the store's return policy at checkout. Since these ship brand new and complete, most retailers accept returns within 30 days if unopened or unused—keep your receipt and document the condition if you need to go that route.